nokia lumia 800

hi was just wondering what I can do have a problem with my whatsapp Connectivity error keeps coming up on it and I only get 2 whatapps messages what can I do to change that ....it says reboot ...how do I do that ...not very smart ...thank you

hi was just wondering what I can do have a problem with my whatsapp Connectivity error keeps coming up on it and I only get 2 whatapps messages what can I do to change that ....it says reboot ...how do I do that ...not very smart ...thank you

Just turn the phone off and on again. Doesn't make an ounce of difference though, which is annoying.